Tides Today & Tomorrow in South Dewees Island, SC

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in South Dewees Island, SC.
Next low tide : 11:08 am (0.5 ft)
Next high tide : in 4h 22m at 5:17 am (4.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8665111
Common Questions About Tides

South Dewees Island, SC Tides - Dec 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:364.21:044.76:251.07:150.87:035:12First Quarter1Fri
2Sat1:304.41:564.77:280.98:060.67:045:12First Quarter2Sat
3Sun2:274.62:514.78:320.88:570.37:055:12Waxing Gibbous3Sun
4Mon3:255.03:494.79:350.69:500.17:065:12Waxing Gibbous4Mon
5Tue4:235.44:464.810:360.410:43-0.27:065:12Waxing Gibbous5Tue
6Wed5:185.75:414.811:340.111:36-0.57:075:12Waxing Gibbous6Wed
7Thu6:126.06:354.912:30-0.17:085:12Full Moon7Thu
8Fri7:056.27:294.912:28-0.71:24-0.37:095:12Full Moon8Fri
9Sat8:006.38:264.91:22-0.82:18-0.37:095:12Full Moon9Sat
10Sun8:576.29:244.82:15-0.83:10-0.37:105:12Waning Gibbous10Sun
11Mon9:546.010:244.73:10-0.74:04-0.27:115:13Waning Gibbous11Mon
12Tue10:525.811:264.74:05-0.54:58-0.17:125:13Waning Gibbous12Tue
13Wed11:515.55:04-0.25:550.17:125:13Third Quarter13Wed
14Thu12:284.712:495.26:080.16:530.17:135:13Third Quarter14Thu
15Fri1:304.71:454.97:130.37:490.27:135:14Third Quarter15Fri
16Sat2:294.82:384.68:160.48:410.27:145:14Third Quarter16Sat
17Sun3:264.93:314.59:170.49:310.17:155:14Waning Crescent17Sun
18Mon4:205.04:234.310:130.410:190.17:155:15Waning Crescent18Mon
19Tue5:095.25:114.311:050.311:040.17:165:15Waning Crescent19Tue
20Wed5:535.35:554.311:520.211:460.17:165:16Waning Crescent20Wed
21Thu6:345.36:374.312:370.27:175:16New Moon21Thu
22Fri7:145.37:184.312:270.01:180.17:175:17New Moon22Fri
23Sat7:535.27:584.21:060.01:580.27:185:17New Moon23Sat
24Sun8:315.28:364.21:430.12:350.27:185:18New Moon24Sun
25Mon9:075.19:134.12:200.13:100.37:195:18Waxing Crescent25Mon
26Tue9:424.99:494.02:560.13:450.37:195:19Waxing Crescent26Tue
27Wed10:154.810:254.03:330.24:200.47:195:20Waxing Crescent27Wed
28Thu10:504.711:054.14:130.34:580.47:205:20Waxing Crescent28Thu
29Fri11:294.511:524.24:590.45:410.37:205:21First Quarter29Fri
30Sat12:154.45:520.56:280.27:205:22First Quarter30Sat
31Sun12:454.41:074.36:540.57:180.17:215:22First Quarter31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8665111)

Common Questions About South Dewees Island, SC Tides

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What time does the tide turn (slack tide) in South Dewees Island, SC today?

Slack tide in South Dewees Island, SC is approximately 8:12 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in South Dewees Island, SC?

South Dewees Island, SC is currently in a spring phase. Tonight's moon is 86% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are South Dewees Island, SC tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for South Dewees Island, SC?

Tide predictions for South Dewees Island, SC come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for South Dewees Island, SC?

Tide data for South Dewees Island, SC is sourced from NOAA Station #8665111. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8665111.

What is the moon phase in South Dewees Island, SC tonight?

Tonight the moon over South Dewees Island, SC is Waxing Gibbous (86% illuminated). This places South Dewees Island, SC in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA